Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 931:

  Natural radioactivity consists of emission?

  Options:
  A) $\alpha$-particles and $\beta$-rays
  B) $\alpha$-particles and X-rays
  C) $\gamma$-ray and X-rays
  D) $\alpha$-particles and $\beta$-rays and $\gamma$-rays
  Show Answer
  The correct answer is D .
• Question 932:

  Efficiency of conduction in liquids and gases compared to solids is

  Options:
  A) less efficient than solid
  B) more efficient than solids
  C) equally efficient to solids
  D) efficiently may vary
  Show Answer
  The correct answer is A .
• Question 933: An electric kettle, connected to a 240V mains, produces 6.0 x 10⁵J of heat energy to boil a quantity of water in 5 minutes. Find the resistance of the kettle. Options:
  A) 14.4$\mathrm{\Omega }$
  B) 28.8$\mathrm{\Omega }$
  C) 144$\mathrm{\Omega }$
  D) 288$\mathrm{\Omega }$
  E) 2880$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 934:

  When a girl moves towards a plane mirror at a speed of 4.0m/s, the distance between the girl and her image reduces a speed of

  Options:
  A) 2 m/s
  B) 4 m/s
  C) 8 m/s
  D) 12 m/s
  Show Answer
  The correct answer is C .
• Question 935:

  

  A force of 5N act at a point Y on a rod XYZ as shown in the diagram above, if XY is 2m. What is the moment of the force about point X?

  Options:
  A) 0Nm
  B) 3Nm
  C) 7Nm
  D) 10Nm
  Show Answer
  The correct answer is A .
• Question 936:

  Calculate the mass of ice that would melt when 2kg of copper is quickly transferred from boiling water to a block of ice without heat loss;

  Specific heat capacity of copper = 400JKg^-1K^-1

  Latent heat of fusion of ice = 3.3 x 10⁵JKg^-1

  Options:
  A) 8/33kg
  B) 33/80kg
  C) 80/33kg
  D) 33/8kg
  Show Answer
  The correct answer is A .
• Question 937: An object 15cm high is 30cm from pin-hole camera. If the height of the image formed at the back of the camera is 10cm, the image distance is Options:
  A) 20cm
  B) 45cm
  C) 54cm
  D) 63cm
  E) 70cm
  Show Answer
  The correct answer is A .
• Question 938:

  A carstarts from rest and covers a distance of 40 m in 10 s. Calculatethe magnitude of its acceleration

  Options:
  A) 3.20 ms${}^{-2}$
  B) 0.25 ms${}^{-2}$
  C) 0.80 ms${}^{-2}$
  D) 4.00 ms${}^{-2}$
  Show Answer
  The correct answer is C .
• Question 939:

  The limiting frictional force between two surfaces depends on

  I. the normal reaction between the surfaces

  II. the area of surface in contact

  III. the relative velocity between the surfaces

  IV. the nature of the surfaces

  Options:
  A) I only
  B) II only
  C) III only
  D) I and IV only
  Show Answer
  The correct answer is D .
• Question 940: Which of the following statements describes an atom accurately? i. atoms of all elements are identical ii. an atom contains a nucleus and number of electrons iii. due to the electrons in the atom an atom is negatively charged iv. electrons in the atom move in circular orbits round the nucleus Options:
  A) i and ii
  B) ii and iii
  C) iii and iv
  D) ii and iv only
  E) i,ii and iii
  Show Answer
  The correct answer is D .